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copy_test.go
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165 lines (136 loc) · 4.99 KB
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package container // import "github.com/docker/docker/integration/container"
import (
"archive/tar"
"context"
"encoding/json"
"io"
"os"
"testing"
"github.com/docker/docker/api/types"
"github.com/docker/docker/client"
"github.com/docker/docker/integration/internal/container"
"github.com/docker/docker/pkg/jsonmessage"
"github.com/docker/docker/testutil/fakecontext"
"gotest.tools/v3/assert"
is "gotest.tools/v3/assert/cmp"
"gotest.tools/v3/skip"
)
func TestCopyFromContainerPathDoesNotExist(t *testing.T) {
defer setupTest(t)()
ctx := context.Background()
apiclient := testEnv.APIClient()
cid := container.Create(ctx, t, apiclient)
_, _, err := apiclient.CopyFromContainer(ctx, cid, "/dne")
assert.Check(t, client.IsErrNotFound(err))
assert.ErrorContains(t, err, "Could not find the file /dne in container "+cid)
}
func TestCopyFromContainerPathIsNotDir(t *testing.T) {
defer setupTest(t)()
ctx := context.Background()
apiclient := testEnv.APIClient()
cid := container.Create(ctx, t, apiclient)
path := "/etc/passwd/"
expected := "not a directory"
if testEnv.OSType == "windows" {
path = "c:/windows/system32/drivers/etc/hosts/"
expected = "The filename, directory name, or volume label syntax is incorrect."
}
_, _, err := apiclient.CopyFromContainer(ctx, cid, path)
assert.Assert(t, is.ErrorContains(err, expected))
}
func TestCopyToContainerPathDoesNotExist(t *testing.T) {
defer setupTest(t)()
ctx := context.Background()
apiclient := testEnv.APIClient()
cid := container.Create(ctx, t, apiclient)
err := apiclient.CopyToContainer(ctx, cid, "/dne", nil, types.CopyToContainerOptions{})
assert.Check(t, client.IsErrNotFound(err))
assert.ErrorContains(t, err, "Could not find the file /dne in container "+cid)
}
func TestCopyToContainerPathIsNotDir(t *testing.T) {
defer setupTest(t)()
ctx := context.Background()
apiclient := testEnv.APIClient()
cid := container.Create(ctx, t, apiclient)
path := "/etc/passwd/"
if testEnv.OSType == "windows" {
path = "c:/windows/system32/drivers/etc/hosts/"
}
err := apiclient.CopyToContainer(ctx, cid, path, nil, types.CopyToContainerOptions{})
assert.Assert(t, is.ErrorContains(err, "not a directory"))
}
func TestCopyFromContainer(t *testing.T) {
skip.If(t, testEnv.DaemonInfo.OSType == "windows")
defer setupTest(t)()
ctx := context.Background()
apiClient := testEnv.APIClient()
dir, err := os.MkdirTemp("", t.Name())
assert.NilError(t, err)
defer os.RemoveAll(dir)
buildCtx := fakecontext.New(t, dir, fakecontext.WithFile("foo", "hello"), fakecontext.WithFile("baz", "world"), fakecontext.WithDockerfile(`
FROM busybox
COPY foo /foo
COPY baz /bar/quux/baz
RUN ln -s notexist /bar/notarget && ln -s quux/baz /bar/filesymlink && ln -s quux /bar/dirsymlink && ln -s / /bar/root
CMD /fake
`))
defer buildCtx.Close()
resp, err := apiClient.ImageBuild(ctx, buildCtx.AsTarReader(t), types.ImageBuildOptions{})
assert.NilError(t, err)
defer resp.Body.Close()
var imageID string
err = jsonmessage.DisplayJSONMessagesStream(resp.Body, io.Discard, 0, false, func(msg jsonmessage.JSONMessage) {
var r types.BuildResult
assert.NilError(t, json.Unmarshal(*msg.Aux, &r))
imageID = r.ID
})
assert.NilError(t, err)
assert.Assert(t, imageID != "")
cid := container.Create(ctx, t, apiClient, container.WithImage(imageID))
for _, x := range []struct {
src string
expect map[string]string
}{
{"/", map[string]string{"/": "", "/foo": "hello", "/bar/quux/baz": "world", "/bar/filesymlink": "", "/bar/dirsymlink": "", "/bar/notarget": ""}},
{"/bar/root", map[string]string{"root": ""}},
{"/bar/root/", map[string]string{"root/": "", "root/foo": "hello", "root/bar/quux/baz": "world", "root/bar/filesymlink": "", "root/bar/dirsymlink": "", "root/bar/notarget": ""}},
{"bar/quux", map[string]string{"quux/": "", "quux/baz": "world"}},
{"bar/quux/", map[string]string{"quux/": "", "quux/baz": "world"}},
{"bar/quux/baz", map[string]string{"baz": "world"}},
{"bar/filesymlink", map[string]string{"filesymlink": ""}},
{"bar/dirsymlink", map[string]string{"dirsymlink": ""}},
{"bar/dirsymlink/", map[string]string{"dirsymlink/": "", "dirsymlink/baz": "world"}},
{"bar/notarget", map[string]string{"notarget": ""}},
} {
t.Run(x.src, func(t *testing.T) {
rdr, _, err := apiClient.CopyFromContainer(ctx, cid, x.src)
assert.NilError(t, err)
defer rdr.Close()
found := make(map[string]bool, len(x.expect))
var numFound int
tr := tar.NewReader(rdr)
for numFound < len(x.expect) {
h, err := tr.Next()
if err == io.EOF {
break
}
assert.NilError(t, err)
expected, exists := x.expect[h.Name]
if !exists {
// this archive will have extra stuff in it since we are copying from root
// and docker adds a bunch of stuff
continue
}
numFound++
found[h.Name] = true
buf, err := io.ReadAll(tr)
if err == nil {
assert.Check(t, is.Equal(string(buf), expected))
}
}
for f := range x.expect {
assert.Check(t, found[f], f+" not found in archive")
}
})
}
}